6
Battery
Status
SOC
LED1
LED2
LED3
LED4
ALM
RUN
5%
＜
SOC
＜
25%
●
off
off
off
off
●
0%
＜
SOC≤5%
●
off
off
off
Flashing
●
SOC=0
off
off
off
off
Flashing/
●
Flashing
4.2. Battery Management System (BMS)
4.2.1. Voltage Protection
Low Voltage Protection in Discharging
：
When any battery cell voltage or total voltage is lower than the protection value
during discharging, the over-discharging mode is activated, and the battery
buzzer makes an alarm sound. Then battery system stops supplying power to the
outside. When the voltage of each cell back to rated range, the protection is
over.
Over Voltage Protection in Charging
：
Battery will stops charging when total voltage or any battery cell voltage reaches
the rated protection value during charging stage. When total voltage or all cell
back to rated range, the protection is over.
4.2.2. Current Protection
Over Current Protection in Charging
：
When the charge current
＞
45A, current limit protection mode is activated,
current will be limited to 5A
，
protection is removed after rated time delaying 10S.
Circulate like this until the current is lower than 45A.
Over Current Protection in Discharging
：
When the discharging current is greater than the protection value 55A, the
battery buzzer alarms and the system stops discharging. Protection is removed
after rated time delaying 1min.
Caution:
The buzzer sound alarm setting can be manually turned off on the background
software, and the factory default is on.
